The exact cause of the crash was still being investigated but police said a westbound vehicle, driven by the man, crossed the centreline and collided with the vehicle travelling with Jasnoor Kaur inside.
Friends of the Kaur family said Jasnoor was a 'beautiful, bubbly little girl'.
Katikati Subway restaurant manager Pooja Verma said the whole Kaur family were regular customers, and she had taken a particular shine to Jasnoor.
"They are a very nice family and I am very, very sad about Jasnoor. She was so cute, and such a bubbly, friendly little girl. I used to tell her mother that every time they came in," she said.